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Home , Acetonitrile, Benzyl alcohol, Chromic acid, Formic acid, Polypropylene, Polystyrene

Chemical Resistance

The following table contains an evaluation of chemical resistance to a number of fluids, judged to be either aggressive or not towards , or . In general common chemical names are used.

The evaluation is based on values obtained by immersion of test specimens in the fluid concerned at 20 °C and atmospheric pressure. It is a provisional classification (sat. sol = saturated aqueous , prepared at 20°C).

Regarding the resistance of TPP products to chemicals many factors need to be taken into consideration:

ƒ exposure time ƒ of chemicals ƒ thermal stress (e.g., autoclaving) ƒ exertion of force ƒ exposure to UV radiation ƒ aging, which may be caused by the action of ƒ other environmental factors

The recommendations given from TPP are based on technical literature and information provided by the manufacturers of raw materials. They were prepared carefully and are intended as first guideline for users of materials, i.e. a general guidance. However, they cannot replace suitability testing performed by the user under actual working conditions. For the list of chemical resistance, following legend is valid:

+ = Good + = Good to limited – = Poor chemical resistance chemical resistance chemical resistance t

Continuous exposure to the Continuous exposure to the Not suitable for continuous substance does not cause substance causes minor exposure to the substance. damage within 30 days. The damages, some of which is Immediate damage may occur plastic may remain resistant reversible, within 7-30 days (loss of mechanical strength, for years. (e.g., swelling, softening, deformation, discoloration, decrease of mechanical strength, , dissolution). discoloration).

Polyethylene (PE) Polypropylene (PP) Polystyrene (PS) Resistance to chemicals 20 °C 20 °C 20 °C A ± ± - Acetic + + ± 5% + + + Acetic acid 50% + + ± Acetic acid glacial + + - + + - + + - Acetophenone + + - Adipic Acid + + + Allyl + + ± chloride + + + Amino + + + aqueous sat. sol + + + Ammonia liquid 100% + + ±

Chemical Resistance Guide for TPP resins, page 1 of 4 www.dutscher.com version 01_2014 Polyethylene (PE) Polypropylene (PP) Polystyrene (PS) Resistance to chemicals 20 °C 20 °C 20 °C acetate sat sol + + + Ammonium chloride sat. sol + + + Amyl acetate 100% ± ± - 100% + + ± 100% + + -

Aqua regia HCl / HNO3= 3:1 - - - Arsenic acid + + + B 2- + + ± + + - - - - Benzyl alcohol ± - - Boric acid + + + Butyl acetate 100% ± - - C Calcium chlorate + + + Calcium chloride + ± + Calcium + ± ± Calcium hypochlorite + ± + Carbazole + + + tetrachloride ± - - Chlorine aqueous sat sol ± + – Chlorine liquid 100% – – – Chlorobenzene ± – – ± ± – Chromic acid up to 40% – + + Citric Acid sat. sol + + + Copper sulphate aq + + + D 1,4-Dioxane ± ± Decahydronaphtalene () + ± – Dibutylphthalate + + – ± + – Diethyl malonate + + – Diethylene dioxide + + Diethylene glycol + + ± Dimethylsulphoxide (DMSO) + + + E + ± – Ethyl alcohol (absolute) - + ± Ethyl alcohol 40% + + ± Ethyl alcohol 96% + + ± chloride - - + + + 100% ± ± –

Chemical Resistance Guide for TPP resins, page 2 of 4 www.dutscher.com version 01_2014 Polyethylene (PE) Polypropylene (PP) Polystyrene (PS) Resistance to chemicals 20 °C 20 °C 20 °C F Fatty acids + + + Fluorinated – ± – Fluorine – – Fluorine gas - - – + + – Formaldehyde 10% + + ± Formaldehyde 40% + + – up to 100% + + ± Formic acid up to 40% + + ± H + + ± Hydrobromic acid up to 100% + + – Hydrochloric acid + + ± Hydrochloric acid 20% + + + Hydrochloric acid 5% + + + Hydrochloric acid up to 40% + + + 4% + + ± Hydrofluoric acid 48% + + – peroxide 30% + + I Isopropanol + ± + Isopropyl ether 100% + + + L 10% + + ± Lactic acid up to 100% + + ± acetate + – M 2-Methoxyethanol + + - chloride sat sol + + + Mercury + + + Mercury hydroxid + + ± 100% + + ± Methoxyethyl oleate + + – Methyl alcohol + + + chloride - ± – N n-Butanol + + + n-Octane + + – Nitric acid 40 - 50% ± ± ± Nitric acid up to 30% + + ± O sat sol + + + ± + ±

Chemical Resistance Guide for TPP resins, page 3 of 4 www.dutscher.com version 01_2014 Polyethylene (PE) Polypropylene (PP) Polystyrene (PS) Resistance to chemicals 20 °C 20 °C 20 °C P 2-Propanol + + + Perchloroethylene – – – Petroleum ether ± ± – Phenol 90% + – – Phosphoric acid + + + Phosphoric acid 5% + + ± Phosphoric acid 85% + + + Phosphorus trichloride + Potassium hydroxide up to 50% + + ± 30% + + ± Propylene glycol + + + – – – S Silicone oil + + + + + ± Sodium carbonate up to 50% + + + Sodium dichromate sat. sol + + + 1% ± + ± Sodium hydroxide 10% - 60% ± + + 15% + + + Stearic acid + + + Sulphuric acid 10 - 30% + + ± Sulphuric acid 50% + + ± Sulphuric acid 96% ± ± – Sulphuric acid 98% ± ± – Sulphuric acid up to 10% + + + T Tartaric acid sat sol + + ± - ± – Tincture of iodine + + ± ± ± – Tributyl citrate ± ± – - – – Triethylene glycol + + + Tripropylene glycol + + + Trisodium phosphate + + U sat sol + + + X ± - ± Z chloride sat sol + + ± Zinc sulphate sat sol + + +

Chemical Resistance Guide for TPP resins, page 4 of 4 www.dutscher.com version 01_2014